- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT02913131
Hyperpolarized C-13 Pyruvate as a Biomarker in Patients With Advanced Solid Tumor Malignancies
Hyperpolarized C-13 Pyruvate as a Biomarker of PI3K/mTOR Pathway Inhibition in Patients With Advanced Solid Tumor Malignancies
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
This is a single center prospective imaging study investigating the utility of hyperpolarized C-13 pyruvate/metabolic magnetic resonance (MR) imaging. The current protocol will serve as a companion imaging biomarker study paired with therapeutic trials of PI3K/mTOR pathway inhibitors (e.g. CUDC-907, BYL719), as well as a stand-alone protocol for patients treated with standard-of-care therapies inhibiting the PI3K/mTOR signaling pathway (eg. everolimus).
In Part A (run-in feasibility phase), patients will undergo imaging at a single time point, without paired tumor biopsy. There will be no follow up imaging or requirement for treatment with PI3K/mTOR pathway inhibitor. Iterative adjustment of radiofrequency coil geometry and imaging sequences will be undertaken to optimize intra-tumoral hyperpolarized pyruvate/lactate signal-to-noise ratio.
In Part B, patients will undergo paired baseline hyperpolarized C-13 pyruvate imaging + tumor biopsy,then initiate treatment with agent inhibiting the PI3K/mTOR pathway. After 21 days (+/- 14 days), patients will undergo repeat hyperpolarized C-13 pyruvate MR imaging + tumor biopsy. Patients will subsequently be treated with PI3K/mTOR pathway inhibitor until disease progression, unacceptable toxicity, or patient/physician decision to discontinue therapy.
Study Type
Enrollment (Actual)
Phase
- Phase 2
- Phase 1
Contacts and Locations
Study Locations
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California
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San Francisco, California, United States, 94143
- University of California, San Francisco
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- Presence of at least one target liver or other intra-abdominal lesion detected by standard staging scans that, in the judgment of Study Investigators, would be amenable to hyperpolarized C-13 pyruvate/metabolic MR imaging: Target lesion must measure >=1.0 cm in long axis diameter on CT or MRI
- The subject is able and willing to comply with study procedures and provide signed and dated informed consent.
- Eastern Cooperative Oncology Group (ECOG) Performance Status of 0 or 1.
- Adequate organ function, including creatinine < 1.5 x ULN or estimated creatinine clearance >=500 mL/min (by the Cockcroft Gault equation) and total bilirubin <3x upper limit of normal (ULN).
Part B only:
- No prior local therapy to target lesion.
If patient agrees to optional biopsy:
- Presence of at least one target lesion amenable to percutaneous tumor biopsy in the judgment of Interventional Radiology
- No history of bleeding diathesis.
- Patients on anti-coagulation they must be able to safely stop treatment for purposes of tumor biopsy.
- Planned treatment with agent targeting PI3K/mTOR pathway (either standard of care or investigational agent)
Exclusion Criteria:
- Patients who because of age, general medical or psychiatric condition, or physiologic status cannot give valid informed consent.
- Patients unwilling or unable to undergo MR imaging, including patients with contra-indications to MRI, such as cardiac pacemakers or non-compatible intracranial vascular clips.
- Metallic implant or device that distorts local magnetic field and compromises the quality of MR imaging.
- Poorly controlled hypertension, defined as systolic blood pressure at study entry greater than 160 mm Hg or diastolic blood pressure greater than 100 mm Hg. The addition of anti-hypertensives to control blood pressure is allowed.
- Congestive heart failure or New York Heart Association (NYHA) status ≥ 2.
- A history of clinically significant EKG abnormalities, including QT prolongation (QTcF > 500 ms), a family history of prolonged QT interval syndrome, or myocardial infarction (MI) within 6 months of study entry. Patients with rate-controlled atrial fibrillation/flutter will be allowed on study.
- Any condition that, in the opinion of the Principal Investigator, would impair the patient's ability to comply with study procedures.
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Diagnostic
- Allocation: Non-Randomized
- Interventional Model: Sequential Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: Part A: Feasibility Run-In
Patients with advanced solid tumor malignancies with at least one liver metastasis will be enrolled with iterative adjustment of coil design to optimize imaging parameters including spatial resolution and signal-to-noise ratio (SNR) of hyperpolarized pyruvate / lactate within the target metastatic lesion(s).
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Pyruvate injection followed by an MRI scan.
MRI scan following the pyruvate (13c) injection
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Experimental: Part B: Biomarker Cohort
Patients with advanced solid tumor malignancies and the presence of at least one liver metastasis amenable to hyperpolarized C-13 pyruvate metabolic MR imaging who are planning on being treated with agent targeting PI3K/mTOR pathway will be enrolled.
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Pyruvate injection followed by an MRI scan.
MRI scan following the pyruvate (13c) injection
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What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Signal-to-noise Ratio (Part A)
Time Frame: 1 day
|
The Signal-to-noise ratio with respect to intra-tumoral hyperpolarized (HP) C-13 Lactate/Pyruvate (lac/pyr) ratio detected within target liver or other intra-abdominal metastasis in patients with advanced solid tumor malignancies enrolled in the feasibility cohort will be determined
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1 day
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Mean Percent Change From Baseline in Peak Intra-tumoral Hyperpolarized Lactate/Pyruvate Ratio (Part B)
Time Frame: Up to 24 months
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Descriptive statistics will be used to characterize the mean change from baseline in intra-tumoral HP pyruvate/lactate ratio after initiation of treatment with PI3K/mTOR pathway inhibitor for participants enrolled in the biomarker cohort, along with 95% confidence interval.
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Up to 24 months
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Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Number of Participants With Reported Treatment-related Adverse Events
Time Frame: Up to 24 months
|
Number of participants with documented treatment-related adverse events will be reported for all patients having received a single dose of HP C-13 pyruvate.
The study will use the NCI Common Terminology Criteria for Adverse Events (CTCAE) version 4 for reporting of adverse events that occur within 3 days of each imaging procedure over the course of the study and any biopsy-related adverse events.
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Up to 24 months
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Association Between Percent Change From Baseline in Peak Intra-tumoral Hyperpolarized Lactate/Pyruvate Ratio on Metabolic MR Imaging With Clinical Benefit Rate (Part B)
Time Frame: Up to 24 months
|
For the purposes of analyzing the association between percent change from baseline in intra-tumoral peak lactate/pyruvate ratio on HP MRI with subsequent clinical outcomes, the cohort will be dichotomized by the median percent change.
The objective response rate by RECIST 1.1 criteria and clinical benefit rate (response or stable disease for > 24 weeks) will be compared between dichotomized groups using the chi-squared test.
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Up to 24 months
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Association Between Percent Change From Baseline in Peak Intra-humoral HP Lactate/Pyruvate Ratio on Metabolic MR Imaging With Progression-free Survival (Part B)
Time Frame: Up to 24 months
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The cohort will be dichotomized by the median percent change.
The log-rank test statistic will then be used to test the association of estimates of the hazard functions of the two groups at each observed event time by computing the observed and expected number of events in one of the groups at each observed event time and then adding these to obtain an overall summary across all-time points where there is an event.
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Up to 24 months
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Collaborators and Investigators
Sponsor
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Estimate)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- 159517
- R01CA183071 (U.S. NIH Grant/Contract)
- NCI-2017-02190 (Registry Identifier: NCI Clinical Trials Reporting Program (CTRP))
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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